Does anyone know what appliance this is?

[Xotiz]

 

[hybobu]

some torture device made from a palate expander

 

[ThugggButt]

View attachment 3276596

braces/retainer for a mouth with certain teeth that can't be put in the retainer yet because they are too messed up to be put inside it, some kind of pallet issue because it also looks extremely narrow.